Michael Wallner wrote:
[EMAIL PROTECTED] wrote:
 ID:               41401
 Updated by:       [EMAIL PROTECTED]
 Reported By:      drlippman at yahoo dot com
-Status:           Open
+Status:           Bogus
 Bug Type:         Math related
 Operating System: Windows, Linux
 PHP Version:      4.4.7
 New Comment:

[2007-05-15 15:44:07] drlippman at yahoo dot com

Description:
------------
Left-to-right order of operations does not appear to be honored when
dividing by a negative

Reproduce code:
---------------
1/-2*5

Expected result:
----------------
-2.5

Actual result:
--------------
-.1

Should all these three examples give the same result?

$ php -r 'var_dump(-1/2*5, 1/-2*5, 1/2*-5);'
float(-2.5)
float(-0.1)
float(-2.5)

According to my memory of Please My Dear Aunt Sally these should be:

-1/2*5 = -.1
1/-2*5 = -.1
1/2*-5 = -.1

So, that is bad if PHP answers that way. Someone please correct me if my memory is wrong. Is there some rule that negative values should be done first before positive values?

--

Brian Moon
Senior Developer
------------------------------
http://dealnews.com/
It's good to be cheap =)

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